Home > Analysis: 622 N 13th St, La Porte, TX 77571

📊 Environmental Assessment Report

This comprehensive report analyzes both flood risk and industrial pollution exposure for this property. The assessment combines multiple data sources including USGS elevation, FEMA flood zones, historical storm modeling, and EPA Toxic Release Inventory records.

🌊 Part 1: Flood Risk Analysis

Property Overview

This section shows the fundamental characteristics of the property, including its elevation above sea level, FEMA flood zone designation, and our calculated overall flood risk rating based on historical data and topographic analysis.

Address

622 N 13TH ST LA PORTE 77571

Building Size

1,470 sqft

Total structure area from HCAD building records.

Elevation

17.83 ft

Height above sea level from USGS data.

FEMA Flood Zone

High Risk - 1% annual chance with established base flood elevation

Overall Risk

Moderate

Risk based on FEMA zone and simulation.

Risk Assessment Outputs

These detailed metrics show the technical outputs from our flood risk model. They include predicted water depths at the property during a 5000-year flood event and estimated flood damage based on USACE methodology.

Risk Rating

Moderate

Flood Depth

0 ft ±0.5 ft

No flooding at current water level.

Water Surface Elevation (WSE)

N/A

Water surface elevation data not available.

Area Inundated

N/A

Data not available

Nearest Bayou Stage

N/A

No nearby bayou within monitoring range

Depth-Damage Estimate (HCAD Valuation)

Property not flooded at current water level. No damage to calculate.

Depth-Damage Estimate (Neighborhood Comparison)

Property not flooded at current water level. No damage to calculate.

Analysis Method

COG Bathtub Model

Raster-based flood inundation query

Flood Simulation

This simulation shows whether the property would flood based on a 5000-year flood event with 3m (9.84ft) water level. Use the interactive tool to explore different scenarios.

✅ Property Would Be Safe

Safety Margin: 7.83 feet
Severity: Safe

Adjust Flood Simulation

The analysis above uses default settings (5000-year flood, 3m/9.84ft water level). To explore different flood scenarios with interactive maps, return to the main tool:

Open Interactive Analysis Tool

Flood Risk Recommendations

Based on the property's flood risk profile, here are specific action items to consider.

This property is in a high-risk flood zone. Flood insurance is required for mortgages.
Consider flood mitigation measures like elevated utilities and flood vents.
Review the interactive flood simulator to understand how different rainfall events could affect this property.
Contact Harris County Flood Control District (HCFCD) for drainage projects and flood information.

🏭 Part 2: Industrial Pollution Exposure

Property Pollution Ranking

High

Higher pollution than 86% of Houston homes

This ranking compares pollution levels within 2 miles of this property against 10,000 randomly sampled Houston metro properties. Lower percentiles indicate higher pollution exposure.

Industrial Pollution Nearby (Last 10 Years)

2.87 million lbs

Extremely High

440.0x more than typical Houston property
≈ 144 dump trucks of chemicals within 2 miles

Total chemical releases from all industrial facilities within a 2-mile radius over the past decade (2014–2024). Data from EPA's Toxic Release Inventory tracking air, water, and land discharges.

💨 Air Pollution (Last 10 Years)

1.47 million lbs

Extremely High

304.0x more than typical Houston property

Chemicals released into the air from nearby facilities over 10 years. Includes both fugitive emissions (leaks, evaporation) and stack emissions (smokestacks, vents). May affect local air quality.

💧 Water Pollution (Last 10 Years)

942 thousand lbs

Extremely High

Chemical discharges to surface water (bayous, streams, drainage) from industrial facilities within 2 miles over the past decade. May impact local waterways and drainage systems.

❤️ Why It Matters

High chemical activity nearby can indicate industrial zones, truck traffic, or potential odor and noise issues. These factors may affect air quality, long-term property desirability, and neighborhood character. This data helps you understand the industrial footprint around your property.

🏙️ Houston Metro Benchmarks

Comparison with typical Houston properties (based on 10,000 randomly sampled homes). All measurements are for chemicals released within a 2-mile radius.

Period	Total	Air	Water
Typical Houston Property (2014-2024)	6,524 lbs	4,822 lbs	0 lbs
This Property (2014-2024)	2,870,855 lbs	1,465,872 lbs	941,658 lbs
Typical Houston Property (2024 Only)	2 lbs	1 lbs	0 lbs
This Property (2024 Only)	815,237 lbs	97,357 lbs	0 lbs

📊 How This Property Compares to Houston Metro

Based on a random sample of 10,000 Houston properties, this chart shows the distribution of pollution levels across the metro area. The highlighted bar indicates where this property falls compared to other homes. Lower percentiles mean higher pollution exposure.

0-9thMost Polluted

9.9%

10-19th

10.1%

20-29th

9.9%

30-39th

10.1%

40-49th

9.7%

50-59th

10.2%

60-69th

70-79th

5.8%

80-89th

4.3%

90-100thLowest Pollution

34.2%

Higher pollution than 86% of Houston homes

Each bar's width represents the percentage of Houston homes in that pollution range. This property ranks in the 10-19th percentile (top 15% most polluted).

Top chemicals released near this property (past 10 years):

Nitrate compounds (water dissociable; reportable only when in aqueous solution), Methanol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Vinyl acetate, Ammonia

View the full list of 53 chemicals below.

Chemicals Released (2014-2024, 10-Year Total) (53 chemicals)

#	Chemical	CAS#	Air (lbs, 10yr)	Water (lbs, 10yr)	Total (lbs, 10yr)
1	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	N511	0	911,682	911,682
2	Methanol	67-56-1	553,543	0	812,543
3	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	216,585	0	216,585
4	Vinyl acetate	108-05-4	39,071	0	176,681
5	Ammonia	7664-41-7	105,663	3,199	108,862
6	Formaldehyde	50-00-0	63,808	0	63,808
7	Hydroquinone	123-31-9	42,495	0	57,435
8	Ethylene	74-85-1	56,751	0	56,751
9	Propylene	115-07-1	49,954	0	49,954
10	n-Butyl alcohol	71-36-3	49,206	0	49,206
11	Toluene	108-88-3	46,261	0	46,261
12	Methyl isobutyl ketone	108-10-1	36,313	0	36,313
13	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	33,058	0	33,058
14	Cumene	98-82-8	31,096	0	31,096
15	Copper compounds	N100	1	84	29,084
16	Sodium nitrite	7632-00-0	0	26,012	26,012
17	Xylene (mixed isomers)	1330-20-7	11,137	0	25,482
18	Acetaldehyde	75-07-0	16,043	0	22,273
19	Hydrogen fluoride	7664-39-3	19,001	0	19,001
20	n-Hexane	110-54-3	16,824	0	16,824
21	Chlorine	7782-50-5	11,961	0	11,961
22	Benzene	71-43-2	10,536	0	10,536
23	Styrene	100-42-5	7,344	0	7,344
24	Acetonitrile	75-05-8	7,091	0	7,091
25	Dimethylamine	124-40-3	7,035	0	7,035
26	Dichloromethane	75-09-2	5,688	0	5,688
27	Chloroacetic acid	79-11-8	4,175	0	4,175
28	Acrylic acid	79-10-7	3,532	0	3,532
29	Methyl methacrylate	80-62-6	3,435	0	3,435
30	Chlorobenzene	108-90-7	3,127	0	3,127
31	Mercury	7439-97-6	0	0	2,200
32	Phosgene	75-44-5	1,958	0	1,958
33	Aluminum oxide (fibrous forms)	1344-28-1	1,750	0	1,750
34	Methyl tert-butyl ether	1634-04-4	1,591	0	1,591
35	Triethylamine	121-44-8	1,515	0	1,515
36	Ethyl chloroformate	541-41-3	1,467	0	1,467
37	Methyl chlorocarbonate	79-22-1	1,449	0	1,449
38	sec-Butyl alcohol	78-92-2	1,434	0	1,434
39	Ethylene oxide	75-21-8	1,431	0	1,431
40	Diphenylamine	122-39-4	997	0	997
41	Manganese	7439-96-5	511	282	793
42	N,N-Dimethylformamide	68-12-2	535	0	535
43	Propylene oxide	75-56-9	371	0	371
44	Hexazinone	51235-04-2	0	212	212
45	Nickel	7440-02-0	0	152	152
46	Chromium	7440-47-3	45	25	70
47	Methyl acrylate	96-33-3	55	0	55
48	Ethylene glycol	107-21-1	14	0	14
49	Nickel compounds	N495	4	3	8
50	Copper And Copper Compounds	N100	0	6	6
51	Butyl acrylate	141-32-2	5	0	5
52	Nickel And Nickel Compounds	N495	2	1	3
53	Methyl isocyanate	624-83-9	1	0	1

Top chemicals released near this property (2024 only):

Aluminum oxide (fibrous forms), Methanol, Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Chloroacetic acid, Propylene

View the full list of 31 chemicals reported within 2 miles for 2024.

Chemicals Released (2024 Only) (31 chemicals)

#	Chemical	CAS#	Air (lbs/yr)	Total (lbs/yr)
1	Aluminum oxide (fibrous forms)	1344-28-1	250	353,010
2	Methanol	67-56-1	16,784	341,356
3	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7664-93-9	29,545	29,545
4	Chloroacetic acid	79-11-8	476	20,694
5	Propylene	115-07-1	10,535	10,535
6	Ammonia	7664-41-7	8,690	8,916
7	Vinyl acetate	108-05-4	2,418	7,117
8	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	7647-01-0	6,255	6,255
9	Formaldehyde	50-00-0	3,559	5,799
10	Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region)	N090	0	5,055
11	Hydroquinone	123-31-9	4,862	4,862
12	Methyl isobutyl ketone	108-10-1	3,997	3,997
13	sec-Butyl alcohol	78-92-2	93	3,447
14	Cumene	98-82-8	2,611	2,611
15	n-Butyl alcohol	71-36-3	75	2,529
16	Hydrogen fluoride	7664-39-3	1,738	1,738
17	Polycyclic aromatic compounds	N590	0	1,652
18	Ethylene	74-85-1	1,329	1,329
19	Acetaldehyde	75-07-0	494	1,132
20	Chlorine	7782-50-5	1,121	1,121
21	Benzene	71-43-2	1,090	1,090
22	Ethylene oxide	75-21-8	420	420
23	Methyl methacrylate	80-62-6	387	387
24	Acrylic acid	79-10-7	186	192
25	Ethyl chloroformate	541-41-3	120	120
26	Styrene	100-42-5	116	116
27	Diphenylamine	122-39-4	103	103
28	Propylene oxide	75-56-9	60	60
29	Phosgene	75-44-5	27	27
30	Methyl chlorocarbonate	79-22-1	13	13
31	Ethylene glycol	107-21-1	3	9